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Wilwood Forged Dynalite Pro Series Rear Disc Brake Kits

Wilwood Forged Dynalite Pro Series Rear Disc Brake Kits

$858.00
$858.00
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The Wilwood Forged Dynalite Pro Series Rear Disc Brake Kit is a high-performance rear brake conversion for classic muscle cars and hot rods with Ford 9-inch, GM 10/12-bolt, or Chrysler 8.75-inch rear axles. This kit pairs perfectly with Wilwood front big brake kits for a balanced four-wheel disc system.

Features forged Dynalite four-piston calipers with stainless steel pistons and internal crossover passages. Rotors are 12.19-inch diameter GT spec curved-vane iron, 0.81 inches thick for reduced rotating mass in the rear. The kit includes an integrated mechanical parking brake mechanism that actuates through standard cables—no more fabbing up a separate caliper for e-brake function. Billet aluminum mounting brackets and all hardware included. Weight savings of approximately 6 pounds per corner versus factory drum assemblies.

The four-piston caliper design provides even pad pressure across the rotor face, eliminating the taper wear common with single-piston sliding calipers. The integral parking brake is a game-changer for street-driven resto-mods—it passes inspection while providing true mechanical engagement. The smaller 0.81-inch rotor thickness in the rear balances brake bias with the larger front rotors, preventing premature rear lockup and keeping the chassis stable under hard braking.

Complete your four-wheel disc conversion with Wilwood Forged Dynalite rear brakes. Get stopping power that balances front and rear. Order your rear kit today.
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Frequently Asked Questions

Does the Wilwood Forged Dynalite Pro Series rear disc brake kit include a parking brake function?

Many Wilwood Forged Dynalite Pro Series rear disc brake kits include an integrated mechanical parking brake mechanism that uses a cable-actuated lever on the back of the caliper to engage the brake pads mechanically. The parking brake function works with standard aftermarket or custom emergency brake cables and meets most state inspection requirements. Verify that the specific part number you are ordering includes the parking brake option, as some kits omit it for weight savings on dedicated race cars.

What rotor size does the Wilwood Forged Dynalite Pro Series rear kit use?

The Wilwood Forged Dynalite Pro Series rear disc brake kit typically uses a 12.19-inch or 12.88-inch diameter rotor depending on the vehicle and wheel package, matching or closely sizing the front rotors for balanced brake bias. The rear rotors are often solid-face to reduce weight and complexity since the rear brakes generate less heat than the front. The two-piece aluminum-hat design reduces unsprung weight and improves heat isolation from the hub bearings.

Will this Wilwood rear big brake kit balance correctly with my factory front brakes?

The Wilwood Forged Dynalite Pro Series rear disc brake kit is designed with a specific caliper piston size and rotor diameter that creates proper brake bias when paired with Wilwood front brakes of similar specifications. If you are installing only the rear kit without matching front brakes, you may need an adjustable proportioning valve to prevent rear wheel lockup under hard braking. Wilwood recommends installing a matched front and rear kit for optimal brake bias and pedal feel.

What is included in the Wilwood Forged Dynalite Pro Series rear brake kit?

The Wilwood Forged Dynalite Pro Series rear disc brake kit includes two Forged Dynalite calipers with parking brake levers, two rotors with aluminum hats, two sets of BP-10 brake pads, stainless steel braided hoses, mounting brackets, and all necessary hardware for installation. The mounting brackets are vehicle-specific and bolt to the factory axle flange or custom bracket. Kits for solid axles may differ from those for independent rear suspension applications.

What differential or axle configurations are compatible with this Wilwood rear disc brake kit?

The Wilwood Forged Dynalite Pro Series rear disc brake kit is available for popular axle configurations including Ford 8.8-inch, Ford 9-inch, GM 10-bolt, GM 12-bolt, Dana 44, Dana 60, and Chrysler 8.25-inch and 9.25-inch axles. The mounting bracket is designed specifically for each axle's caliper mounting flange pattern and axle tube diameter. When ordering, specify your exact axle make, model, and housing flange type to receive the correct mounting brackets.

How much weight does the Wilwood Forged Dynalite rear kit save compared to factory drum brakes?

The Wilwood Forged Dynalite Pro Series rear disc brake kit saves approximately 8 to 12 pounds per corner compared to a factory drum brake assembly, which is significant because rear unsprung weight reduction improves ride quality and traction. The forged aluminum caliper and two-piece aluminum-hat rotor eliminate the heavy cast iron drum and internal brake hardware. Weight savings on the rear axle also reduce the rotational inertia of the differential and axle shafts.